#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
#       login.py
#
#       Copyright (C) 2010  Catullus Cassius
#
#       This file is part of python-vkontakte-player.
#
#       This program is free software: you can redistribute it and/or modify
#       it under the terms of the GNU General Public License as published by
#       the Free Software Foundation, either version 3 of the License, or
#       (at your option) any later version.
#
#       This program is distributed in the hope that it will be useful,
#       but WITHOUT ANY WARRANTY; without even the implied warranty of
#       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#       GNU General Public License for more details.
#
#       You should have received a copy of the GNU General Public License
#       along with this program.  If not, see <http://www.gnu.org/licenses/>.

from urllib import unquote
import simplejson as json

import PyQt4
from PyQt4 import QtGui, QtCore, uic, QtWebKit
from PyQt4.QtGui import QDialog
from PyQt4.QtCore import QUrl
from PyQt4.QtGui import QMessageBox

from loginDialog import Ui_Dialog

class LoginExc(Exception):
	def __init__(self, error_msg):
		self.error_msg = error_msg
	def __str__(self):
		return repr(self.error_msg)

class loginDialog(QtGui.QDialog, Ui_Dialog):
	def __init__(self, parent=None):
		super(loginDialog, self).__init__(parent)
		self.parent = parent
		self.setupUi(self)
		self.setWindowTitle('Login')
		self.webView = QtWebKit.QWebView(self)
		self.webView.setGeometry(6, 6, 400, 400)
		self.webView.setObjectName("webView")
		self.webView.connect(self.webView, QtCore.SIGNAL("linkClicked()"), self.goToUrl)
		self.webView.connect(self.webView, QtCore.SIGNAL("urlChanged(const QUrl&)"), self.evurlChanged)
		self.webView.load(QUrl("http://vkontakte.ru/login.php?app=2004200&layout=popup&type=browser&settings=16383"))

	def closeLoginDialog(self):
		self.close()

	def goToUrl(self, url):
		self.webView.load(QUrl(url))

	def evurlChanged(self, url):
		path = str(self.webView.url().path())
		if path == '/api/login_success.html':
			self.returnSession( json.loads(unquote(unicode(self.webView.url().toString())).split('=')[1]) )
		elif path == '/api/login_failure.html':
			raise LoginExc('Login failure')

	def returnSession(self, session):
		pass
